Asghar, Asma, Salman Syed, Mohammad Abdullah, Arshad Hayat, Faisal Mehmood, and Khalid Khan. “CHLOROQUINE AND AZITHROMYCIN INDUCED QTC PROLONGATION IN COVID-19 PATIENTS”. Pakistan Armed Forces Medical Journal 70, no. 1 (August 7, 2020): S358-62. Accessed May 28, 2023. https://pafmj.org/index.php/PAFMJ/article/view/4933.